System of lubrication.



F. ZIHGLER SYSTEM OF LUBRICATION.

APPLICATION nun 0012a, 1912 1 1 i 31 G315 Patented Oct. 6, 19M.

s Z A 15 ;,.-l4

2i i C :E

4 WW, I5

Wibnesses lmvua-r'a tor;

W I Friedrich Ziegkar: 9 wdaw mun i To allwhom it may concern larly to such a.

IT D 1 STATES PATIENT oF Io rn'mn'nxcn cinema, or onennorrnnnunc, GERMANY, 'AssIGNoR Te emann Emormo COMPANY, AICOMORATION or new Yo r; y Y

sys'rnm on runa'rcarroaf.

Patented ea.- c, 1914-.

Application filed October 8', i912. seal n 724,544.

Be it known that I, FRIEDRICH Zmennn, a subject of the Emperor of Germany, residing at Charlottenburg, Germany, haveinvented certain new and useful Improvements in Systems of Lubrication, of which the following is a Specification. i

This invention-relates. to systems of lubrication wherein a lubricant is supplied under pressure to two or more points-requiring lu; brication. The system relates more particustem" wherein the. fresh points intermediate lubricant is supplied at,

between the ends of the earings and is collected and again applied at'pomts-adjacent the outer end of one or more of such bear- .in'gs. By this arrangement the middlepf each bearing is continuously furnished with the fresh lubricant,-an arrangement which is decidedly, advantageous-1 and an economical and efliclent. use of the lubricant results.

In the accompanying drawing the invention is shown applied to ajconnecting rod in an internal com ustion engine, the figure bein a longitudinal section of a portion of a cy inder with its-piston, connecting rod and y crank-shaft I i The piston 1; moves in a cylinder 2-and is providedwith a 'wrisapi'n 3 for the upper end P of the connecting rod 4. The lower 1 end 4 of said rod engages the crank-pin 5 of a crank-shaft 6 which has a longitudinal duct 7 extending up through the crank-arms 5 s and lengthwise through the pin. :11, the

brasses 9 which surround the crank-pin are V three'circumferential grooves, the middle one 10 being in constant communication with i radial holes 11 in the pin extending from theduct 7 to its periphery. A pipe 12, opening into the groove 10, runs up through the connecting rod to an intermediate groove 13 inthe. upper head 4 of said'rod surrounding the wrist-pin 3. On each side of this groove-13, near the ends of the bearing in said head, are collecting grooves 14, communicating with one or more lopgitudinal passages 15 in the rod, which in turn deliver into outer or side circumferential grooves 16 near the ends of the brasses'9. I preferto make the passage 15 annular, concentric with the pi e 12. a

The oil orced through the-duct 7 flows through the-radial holes 11 to the middle of the crank-pin 5, where some of it is used for lubrication. A portion of it is forced upthrough the pipe 12 to, the middle of the bearing on the wrist pi'n 3. Here its reads both waysalong said pin until caught y the collecting grooves 14, from which it is concylinder engine the duct 7 may'come in at only one side 0' the crank. p

; In accordalnce withthe provisions of the patent statutes, .Ixhave described the prinbe provided in the rod. If applied to a single ciple of opera'tionbf myrinvention, together with the apparatus which I now consider to represent the best embodiment thereof; but

I desire to have it understood that the ap.

paratus shown'ispnly, illustrative, and that the invention can be carried out by other means. k

What I claim as new and desire to secure by Letters Patent of the United States, is,-

1. The combination with a plurality of bearings of means for supplying lubricant under pressure at, points intermediate between the ends of said bearings, and means for collecting the usedllubricant from one of said bearings and directing it to points adjacent the ends of another of said bearings.

2. The combination of a pair of bearings, a connecting rod joinin said bearings, means for supplying lubricant under pressure at points intermediate between the ends v of each of said bearings and means for col- I lecting the used lubricant from one of said bearings and applying it at points adjacent the ends of the other of said bearings, said last named meansinclnding a passage carriedby the connecting rod;

3. The combination with a. connecting rod, wrist pin, and crank pin, of means for supplying lubricant under pressure to the middle of each of said pins, and a passage .in said connecting rod for conveying used lubricant from said Wrist pin to points adjacent the ends of said crank pin.

4. The combination with a connecting rod, wrist-pin and crank-pin, of means for supplying fresh lubricant to the middle of said crank-pin, and passages in said rod for conveying lubricant from the crank-pin to rhe wrist-pin and back to the ends of the crank-pin.

5. The combination with a wrist-pin, of a connecting rod having a head provided With circumferential grooves surrounding said pin, a crank-shaft and pin having a duct for lubricant, radial holes in said pin, a bearing :lor said rod having a circumferential groove communicating With said holes, a pipe in.

said rod leading from said groove to an 111- l'eruiedlate groove in the head of the rod,

1 a passage conducting lubricant back from collecting grooves in said head to the bearing on the crank-p n, and outer grooves 1n said bearing with which said passage connects.

In Witness whereof I have hereunto set my hand this 19th day of September, 1912.

FRIEDRICH ZIEGrLE Vitnesses: I 4

BERNI-IARD KRAM R, v 

